Results 101 to 110 of about 166,290,583 (305)
Combinatorial Quantum Gravity and Emergent 3D Quantum Behaviour
, 2023 We review combinatorial quantum gravity, an approach that combines Einstein’s idea of dynamical geometry with Wheeler’s “it from bit” hypothesis in a model of dynamical graphs governed by the coarse Ollivier–Ricci curvature.
Carlo A. Trugenberger
core +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo +3 more
wiley +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai +3 more
wiley +1 more source
Quantum Machian time in toy models of gravity [PDF]
Classical and Quantum Gravity, 2009 27 pages, references added, typos fixed, additional comments added to abs/intro/concl, journal ref ...
openaire +2 more sources
(2+1) gravity for higher genus in the polygon model [PDF]
, 2004 We construct explicitly a (12g − 12)-dimensional space P of unconstrained and independent initial data for ’t Hooft’s polygon model of (2+1) gravity for vacuum spacetimes with compact genus-g spacelike slices, for any g ≥ 2.
Kádár, Zoltán +5 more
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Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Magnetic soft robots offer promise in biomedicine due to their wireless actuation and rapid response, but current fabrication methods are complex and have limited cellular compatibility. A new, contactless bioassembly strategy using hydrodynamic instabilities is introduced, enabling customizable, centimeter‐scale robots.
Wei Gao +5 more
wiley +1 more source
Sine-dilaton gravity vs double-scaled SYK: exploring one-loop quantum corrections
Journal of High Energy PhysicsWe provide non-trivial checks of the recently proposed duality between double-scaled SYK and a 2d dilaton gravity model with sine potential, studying the path integral at one-loop level.
Leonardo Bossi +4 more
doaj +1 more source
Lattice Models of Quantum Gravity
, 1998 Standard Regge Calculus provides an interesting method to explore quantum gravity in a non-perturbative fashion but turns out to be a CPU-time demanding enterprise. One therefore seeks for suitable approximations which retain most of its universal features. The $Z_2$-Regge model could be such a desired simplification. Here the quadratic edge lengths $q$
Bittner, E. +5 more
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RENORMALIZATION FOR SPIN FOAM MODELS OF QUANTUM GRAVITY [PDF]
The Tenth Marcel Grossmann Meeting, 2006 5 pages, talk given at the 10th Marcel Grossmann meeting, Rio de Janeiro, July ...
openaire +3 more sources
Cosmic censorship in quantum Einstein gravity [PDF]
, 2017 We study the quantum gravity modification of the Kuroda-Papapetrou model induced by the running of the Newton’s constant at high energy in quantum Einstein gravity.
Koch, B. +7 more
core +1 more source